Window screen



G. O. GABRIEL Feb. 20. 1934.

WINDOW SCREEN Filed Nov. 29, 1932 2 Sheets-Sheet l ATTORNEY Feb. 20,1934. O GABRlEL 1,948,262

WINDOW S GREEN Filed Nov. 29. 1952 v Sheets-Sheet 2 Y %wa@w ATTORNEYPatented Feb. 20, 1934 WINDOW SCREEN Gustave 0. Gabriel, Newark, N. J.

Application November 29, 1932 Serial No. 644,762

Claims.

This invention relates to improvements in window screens, andparticularly to means which enable window screens to be readilyassembled and installed, and conveniently adjusted to posi- 5 tions tocover a part of or the entire window, as

may be desired.

Heretofore, window screens of the type herein described, have been woundupon the well known shade roller which relies upon springs for itsactions, and as a result, the unwinding and Winding of such windowscreens has been'often very unsatisfactory as the spring rollers do notalways function properly, causing the screen to be loose and bulge,leaving many openings through which insects and the like may pass.

Also, it has been usually necessary to especially construct the windowscreen for each window, which is objectionable in that it increases thecost of the window screen.

Itis, therefore, an object of this invention to provide a window screenwhich may be positively and accurately adjusted to cover any part of orthe entire window, without resort to the use of the spring rollers ofthe window shade type.

A further objectis the provision of a window screen which has means tocause it to be held taut and flat at all times to prevent looseness andbulges.

A further object is the provision of a novel frame structure for awindow screen which canv be economically manufactured and convenientlyassembled.

A further object is the provision of means for frictionally maintaininga window screen in adjusted positions.

These and other advantageous objects, which will later appear, areaccomplished by the simple and practical construction and arrangement ofparts hereinafter described andexhibited in the accompanying drawings,forming part hereof, and in which:

Fig. 1 is a front elevational view of my device,

Fig. 2 is a rear elevational view of my device,

Fig. 3 is a perspective view of details of the device,

Fig. 4 is a sectional View of a corner of the device showing the mannerof supporting a screen therein,

Fig. 5 is a fragmentary View of frame used in my device,

Fig. 6 is a sectional view taken on line 66 of Fig. 1,

Figs. 7 and 8 show details of a chain used in my device,

56 part of the Fig. 9 is a perspective view showing in detail the shapeof elements used in Fig. 10 is a perspective view the frame,

of a bearing for rotatably supporting a shaft about which the screen iswound,

Fig. 11 is an exploded perspe entire device,

ctive view of the Fig. 12 is a fragmentary perspective view of anelement of the frame used in Fig. 13 shows a modified manner of a screenresiliently to the chains.

the device, and

Referring to the drawings, my device is shown to include a frame havingside members 13, 14,

length of the side member.

The angle 19 has also a slot 21 with transverse portions 22 at each endthereof for a purpose hereinafter de- 80 scribed.

The top member 15 has a st raight back wall 23 and a curved front wall24, the frontiwallbeing bent up and at right angles to the back wall ateach end of the member to provide lips 25 which are welded to thesidepieces 13, 14.

In the upper ends of the side member 13 and 14 are positioned bearings26, to the side members preferably which are fixed by spot welding.

The bearings (see Fig. 10) have one face provided with a slot 27 openinginto a circular aperture 28, and have the opposite face provided with ahole 29 (see Fig. 4) which receives the end of a shaft 30.

Fixed to the shaft 30, near the ends thereof, are sprocket wheels 31engaging endless chains 32, which also pass over sproc kets 33 on stubshafts 34, mounted in bearings 35 in the lower ends of the side members,the bearings 35 being of substantially the same construction as bearings26.

bearings.

Attached to the lower edge of the screen is a metal strip 37, which isalso attached to the chains 32, so that movem will cause the screen tomove.

ent of the chains attaching Fixed to one chain 32 adjacent the shaft 36is a U-shaped member 38 formed from flat resilient material. A similarmember 39 is attached to the other chain near the lower edge of thescreen (see Fig. 3).

The members 38 and 39 pass through the slots 21 in the side members, andfrictionally engage the side members.

In operation, to lower the screen, members 38 and 39 are squeezed tobreak their frictional engagement with the side members 13 and 14 andthen member 38 is moved downward and member 39 moved upward in the slots21. Should the members 38 and 39 be released at any time, the screenwill remain in the position to which it has been moved, as themembers38, 39 will frictionally engage the side members.

Interposed as a link in each chain is a coiled tension spring 40, whichmaintains the chain taut at all times, which in turn holds the screentight and fiat so that there will be no bulges "or openings throughwhich insects and the like can pass.

In Fig. 13 is shown a modified form in which one end of a coiled spring41 is attached to.

the chain and forms a link thereof, while the other end of the spring isattached tothe strip 37, which is fixed to the chains.

When it is desired to completely cover the window with the screen, theU-shaped members 1 38 and 39 are moved to positions in the transverseslots 22, where they spread and are prevented from' accidental movement,thus insuring the position of the screen.

It will be seen that my screen is positively controlled by the movementsof the chains and does not rely upon spring rollers as is the case withthe usual window shade. The device can be readily and convenientlyinstalled in any window, and obviously can be easily assembled. The

,side members 13 and 14 preferably are of a m 1'. In a window screendevice, a frame having a pair of vertical tubular side members withlongitudinal slots therein, a bottom member and a top member attached tothe side members, a shaft rotatably supported by the upper ends of theside members, stub shafts rotatably supported by the lower ends of theside members, sprockets fixed to said shaft and stub shafts, endlesschains passing over the sprockets,-a window screen having one edgeattached to said shaft, and a strip attached to the other end of thescreen, said strip being fixed to said chains.

2. In a window screen device, a frame having a pair of vertical tubularside members with longitudinal slots therein, a bottom member and a top'member attached to the side members, a shaft rotatably supported by theupper ends of the side member, stub shafts rotatably supported by thelower ends of the side members, sprockets fixed to said shaft, and stubshafts, endless chains passing over the sprockets, a window screenhaving one edge attached to said shaft, and a strip attached to theother end of the screen, said strip, being fixed to said chains, each ofsaid chains having a coiled tension spring interposed therein andserving as a link. 7 3. In a window screen device, a frame having a pairof tubular side members, bearings attached to the upper and lower endsof the side members, a shaft rotatably supported by the upper bearings,stub shafts rotatably supported by the lower bear ings, sprocketscarried by said shaft and stub shafts, endless chains positioned withinthe tu-. bular side members and engaging the sprockets, a screen havingits upper edge attached to the shaft, and means for connecting the loweredge of the screen to the chains. v

4. In a window screen device, a pair of tubue lar side members, each ofsaid members having a pair of slots extending the length thereof, anupper shaft rotatably supported by the upper ends of the side members,stub shafts supported by the lower ends of said members, sprockets fixedto the shafts, endless chains within said members and engaging saidsprockets, a window screen having one end attached to saidupper shaft,means for attaching the other end of the screen to the chains, saidscreen passing through one of the slots in each of the side members, andresilient U-shaped members attached to the chains and passing throughthe other slots in the side mem-- bers, said U-shaped membersfrictionally engaging the'side members to maintain the screen inadjusted positions.

5. In a window screen device, a pair of tubular side members, each ofsaid members having a pair of slots extending the length thereof, anupper screen having one end attached to the shaft, and

the other end attached to said chains, said screen passing through oneof the slots in each of the side members, and resilient means attachedto the chains and passing through the other slots in the side members,said resilient means frictionally engaging the side members to maintainthe screen, in adjusted positions.

GUSTAVE O. GABRIEL.

